# NOCO GBC003: HD Precision clamps for Boost GB20/GB40/GB50/GBX45 (12V)

![NOCO GBC003: HD Precision clamps for Boost GB20/GB40/GB50/GBX45 (12V)](https://bateriasonline.es/4330-home_default/noco-gbc003-hd-precision-battery-clamps.jpg)

> NOCO GBC003 HD Precision clamps: fine tips, 8 AWG silicone cable and Boost connector. Check that your jump starter is a GB20, GB40, GB50 or GBX45 first.

**Category:** [Battery accessories](https://bateriasonline.es/en/battery-accessories) → NOCO

- **Canonical URL**: https://bateriasonline.es/en/noco-gbc003-hd-precision-battery-clamps
- **Language**: en
- **Brand**: NOCO
- **Reference**: BOL-NOCO-GBC003
- **EAN**: 0046221190144
- **MPN**: GBC003
- **Last updated**: 2026-11-10

## Quick description

Heavy-duty replacement clamps for the Boost GB20, GB40, GB50 and Boost X GBX45 jump starters, with fine tips for awkward terminals.
- For GB20, GB40, GB50 and GBX45
- 8 AWG silicone cable
- 30 cm of cable
- 40% wider opening
- All-metal build

## Description

## NOCO GBC003: HD Precision clamps for Boost GB20/GB40/GB50/GBX45 (12V)

They make sense if you own a Boost GB20, GB40, GB50 or a Boost X GBX45 and want a replacement or a spare set of clamps. The narrow tips reach small terminals in tight spaces, side-post batteries and oversized posts, and they open 40% wider than NOCO’s earlier HD clamps.
They are not for you if your jump starter is a GBX55, GBX75, GBX155 or a GB70 or above: NOCO lists compatibility only with the four models named.
They suit 12 V petrol and diesel engines and join the jump starter through the Boost connector on 30 cm of cable.

### Features

- •   Compatible with NOCO Boost GB20, GB40, GB50 and Boost X GBX45
- •   Fine tips for top-post, side-post, small or oversized terminals
- •   Open 40% wider than NOCO’s previous HD clamps
- •   All-metal construction with high current transfer
- •   8 AWG silicone cable that stays supple in the cold, 30 cm to the Boost connector

### Technical data

| Compatibility | NOCO Boost GB20, GB40, GB50, Boost X GBX45 |
|---|---|
| Application | 12V petrol and diesel engines |
| Cable gauge | 8 AWG, silicone |
| Cable length | 30 cm (12") |
| Construction | All metal |
| Connection | Boost connector |

### Common questions

Do they fit my GBX55?
No: NOCO lists them only for the GB20, GB40, GB50 and GBX45.
Which engines can I start with them?
Whatever your compatible jump starter handles: 12 V petrol and diesel engines, within the Boost’s own limits.
Why silicone cable?
The 8 AWG cable is heat-stabilised and stays flexible in the cold, which makes the clamps easier to place.

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*bateriasonline.es — Batteries and accessories · 2026-11-11*